Other causes for cancellation of concession.
Article 90
ART. 90. Other causes for cancellation of concession.— (a) Exploration Concessions may be cancelled under any of the following causes: 1. For failure of the concessionaire to perform the work obligations required by article forty-seven of this Act for two consecutive years; and 2. For failure to pay for two consecutive years the ex-ploration tax due thereon, as required by article forty-nine of this Act. (b) Exploitation Concessions may be cancelled under any of the following causes: 1. For failure of the concessionaire to perform the exploitation work obligations as required under the provisions of articles sixty and sixty-one of this Act, for two con-secutive years; 2. For suspending production operations for more than six months without prior written approval of the Secretary of Agriculture and Natural Resources as provided for in article sixty-two of this Act; 3. For failure to pay for two consecutive years the an-nual exploitation tax due thereon, as required by article sixty-four of this Act; 4. For failure to deliver or pay to the Government its royalty within one year from the date such royalty becomes due. (c) Refining and Pipe Line Concessions may be cancelled for failure of the concessionaire to begin the construction of a refinery and pipe line, as the case may within one year from the date of the issuance of such concessions.